This simple Gantt chart (Excel 82 KB) represents the construction of three similar houses in a new residential estate. It demonstrates how a concreter may complete the pouring of a concrete slab on one house and then move to the next house requiring similar work. There is a similar process for the other tasks shown in the chart.
It is desirable to minimise skilled labour from moving off-site when there is work to be done on nearby constructions. This can save a great deal of time. If sub-contractors move to another location it can be difficult to ensure their return for the next stage of the project.